How can the automatic update in regular intervals through Ajax affect the session handling in PHP?

When using automatic updates through Ajax in regular intervals, it can cause the session to expire prematurely due to the constant requests being made. To solve this issue, you can refresh the session expiration time with each Ajax request by calling session_start() at the beginning of the script. 

<?php
session_start();

// Your Ajax request code here

// Refresh session expiration time
if (isset($_SESSION['LAST_ACTIVITY']) && (time() - $_SESSION['LAST_ACTIVITY'] > 1800)) {
    session_regenerate_id(true);
    $_SESSION['LAST_ACTIVITY'] = time();
}

Keywords

Ajax automatic update session handling PHP intervals

Related Questions